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Censored Variables
A special type of missing data
•The
exact value is not always known
–Right
censoring:
•For some observations it is only known that the true value
exceeds some threshold
–Left
censoring:
•For some observations it is only known that the true value
is below some threshold
–Interval
censoring:
•For some observations it is only known that the true value
is between some thresholds